Go to MPAI-OSD Data Types

Definition Functional Requirements Syntax Semantics Conformance Testing Performance Assessment

1      Definition

An Item including a series of LiDAR Scene Descriptors for a duration.

2      Functional Requirements

A LiDAR Event Descriptors instance must include:

  1. The LiDAR Event Descriptors Header
  2. The ID of the LiDAR Event Descriptors.
  3. The IDs or the LiDAR Scene Descriptors of the LiDAR Scene Descriptors included in the LiDAR Event instance.

A LiDAR Event Descriptors instance may include:

  1. The ID of a Virtual Space (M-Instance) to which it refers.
  2. The ID of a U-Environment to which it refers.
  3. The Space-Time information of the LiDAR Event instance.
  4. Information about this LiDAR Event instance.
  5. Descriptive Metadata.

3      Syntax

https://schemas.mpai.community/OSD/V1.5/data/LiDAREventDescriptors.json

4      Semantics

Label Description
Header LiDAR Event Descriptors Header – Standard “OSD-LED-Vx.y”
MInstanceID Identifier of the M-Instance.
UEnvironment Identifier of the U-Environment.
LiDAREventDescriptorsID ID of this LiDAR Event Descriptors instance.
LiDAREventDescriptorsTime Space and Time of LiDAR Event Descriptors.
LiDAREventDescriptorsSpaceTime Space and Time of LiDAR Event Descriptors.
LiDARSceneDescriptors[] Set of LiDAR Scene Descriptors in the LiDAR Event.
– LiDARSceneObjectSpaceTime A set of LiDAR Scene Descriptors of the LiDAR Event.
DataXMData Information on this LiDAR Event Descriptors instance.
DescrMetadata Descriptive Metadata

5     Conformance Testing

A Data instance Conforms with MPAI-OSD LiDAR Event Descriptors (OSD-LED) if:

  1. The Data validates against the LiDAR Event Descriptors’ JSON Schema.
  2. All Data in the LiDAR Event Descriptors’ JSON Schema
    1. Have the specified type
    2. Validate against their JSON Schemas
    3. Conform with their Data Qualifiers if present.

6     Performance Assessment